Sellvia Catalog

Keep Your Aquarium Healthy, Clear, and Stress-Free

A thriving aquarium doesn’t happen by accident—it happens with consistency. The Fish Tank Care Checklist is a simple, practical digital checklist designed to help you stay on top of daily, weekly, and monthly aquarium care without feeling overwhelmed. Whether you’re new to fishkeeping or managing a well-established tank, this checklist gives you peace of mind by turning complex aquarium maintenance into easy, repeatable steps you can follow with confidence.

What’s Included in the Fish Tank Care Checklist

Morning Check – Observe fish for unusual behavior, signs of stress, or illness; check water temperature and adjust heater if necessary; top off evaporated water with dechlorinated water; verify that filters and pumps are running properly.
Feeding Routine – Feed fish small, measured portions appropriate for species; remove leftover food after a few minutes to prevent water contamination; rotate diet to include flakes, pellets, and occasional live or frozen food; observe fish reactions to food to ensure all are eating.
Weekly Maintenance – Test water parameters: pH, ammonia, nitrites, nitrates; clean algae from glass and decorations; replace 10–20% of tank water with fresh, dechlorinated water.
Monthly Deep Care – Thoroughly clean filter media without using soap or chemicals; trim live plants and remove dead leaves; deep vacuum substrate to remove excess waste; check lighting schedule and bulbs for optimal growth conditions.
Smart Tools for Aquarium Monitoring – Use AI-enabled apps to log water parameters and feeding schedules; set reminders for maintenance tasks and water changes; track fish health trends to detect potential problems early; analyze patterns over time to optimize tank environment.
Prompt Examples for Observation and Tracking, including: “What changes in fish activity did I notice today?”, “Did any fish display stress or unusual swimming patterns?”, and “Which water parameter readings were outside the safe range?”

Why This Checklist Works

Helps prevent common issues like cloudy water, algae blooms, and fish stress
Saves time by clearly outlining what to do and when
Supports healthier fish, plants, and water quality
Easy-to-use format you can print or use digitally

Who This Is For

This checklist is ideal for beginner aquarium owners, busy fishkeepers, and anyone who wants a reliable system for fish tank maintenance. It works for freshwater and saltwater setups and scales easily as your tank grows.

Download and Care with Confidence

Take the guesswork out of aquarium care and enjoy a cleaner, healthier tank every day. Download the Fish Tank Care Checklist now and give your fish the consistent care they deserve.

Shipping

We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location	*Estimated Shipping Time
United States	5-20 Business days
Canada, Europe	5-20 Business days
Australia, New Zealand	5-20 Business days
Central & South America	5-20 Business days
Asia	5-20 Business days
Africa	5-20 Business days

*This doesn’t include our 1-3 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

Returns

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

If you did not receive the product within the guaranteed time (45 days not including 1-3 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
Your order did not arrive due to exceptional circumstances outside of our control (i.e. not cleared by customs, delayed by a natural disaster).
Other exceptional circumstances outside of our control.

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message at support@sellvia.com

Exchanges

If for any reason you would like to exchange your product, perhaps for a different size in clothing, you must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Fish Tank Care Checklist – Aquarium Maintenance Guide for Freshwater & Saltwater Tanks | Printable Digital Download